Harrow



J.0ULLBN.

(No Model.)

HARROW.

No. 325,734. Patented Sept." 8, .1885.

INVENTOR- UNITED STATES PATENT OF ICE.

JOHN German, or JANESVILLE, WISCONSIN.

HYARROW.

SPECIFICATION forming part of Letters Patent No. 325,734, dated September 8, 1885.

' Application filed May 22, 1885. (No model.)

To all whom it may concern:

Be it known that I, JOHN OULLEN, of J anesville, in the county of Rock and State of Wisconsin, have invented certain new and useful Improvements in Harrows; and I do hereby declare the following to be a full, clear, .and exact description of the invention, such as will enable others skilled in the art to which it appertains to make and use the same.

My invention relates to an improvementin harrows, the object of the same being to provide the harrow with supporting bars for teeth, which may be connected with each other in such manner as will permit the bars to pass independently of each other over rough and uneven surfaces. A further ob ject is to provide means for adj ustabl y securing the harrow-teeth to the bars, a further object being to provide means of the above character which shall be simple and economical in construction and durable and efficient in use; and with these ends in view my invention consists in certain features of construction and combinations of parts, as will be hereintherein.

after fully described, and pointed out in the claims.

In the accompanying drawings, Figure 1 is a perspective view of a portion of a barrow embodying my improvement. Fig. 2 is a detailed view of one of the'lock-plates.

A represents one of the drag-bars, one end of which is provided with the hook B, adapted to clasp one of the loops or rings 0, secured to the double'tree D by means of a ring or loop, E, or in any other preferred manner. Near the upper end of the drag-bar A is secured the cross-bar F, by means of the lockplate G, the lower end of the bar being provided with a similar lock-plate secured thereto in adift'erent position and adapted to receive the tooth H, which is adjust-ably secured The plate G is composed of two separate pieces of metal, the piece 9 of which is provided with the deep recess 9, in which is located the cross-bar or harrow-tooth adapted to fit snugly therein. The side walls of the recess 9 are provided with the grooves h, adapted to receive the drag-bar A. The diagonally-opposing corners h2 of the piece g are enlarged and provided with the openings hi. The upper section, K, of the plateis provided with the recess is and the lips 70. The said sections, being adapted to cover the drag bar or tooth and the ends thereof, are provided with the holes h, adapted to register with the holes 71. in the lower piece, 9, the two being and cross-bar, as the case may be, firmly against each other. \Vhen it is desired to extend the length of the tooth or cross-bar, the bolts are loosened and the same can be readily accomplished. One end of the crossbar F is slightly enlarged and provided with the perforation, to which enlarged portion is secured the clip L, the arms of which are provided with perforations adapted to register with the perforations in the bar to which the clip is secured by means of the pivotal bolt f The clip L is provided near its end with the longitudinal perforation Z, which is adapted to receive one of the drag'bars of the harrow, which is locked in the said clip by means of the set-screw Z which impinges against the bar from the outside of the clip. By employing the hinged or pivoted clip as a support for the drag-bar, it will be seen that the bars are free to move independently of each other with reference to vertical movement when the harrow is employed over rough and uneven surfaces.

v I am aware that it is not, broadly, new to connect the drag-bars of a harrow by crossbars adjustably secured to one bar and pivotally secured to the next adjacent bar. In this device above referred to the cross-bar is provided atone end with an eye, which recrossbar to rise without turning or tilting the other bar to which it is connected. In my device the drag-bars are connected by a hingejoint located between the drag-bars, and permit-s either bar to be elevated without interfering with the other.

,Having fully described my invention, what I claim as new, and desire to secure by Letters drag-bar, of a cross-bar adjustably secured to plate G, having recess 9 and grooves 71 and said drag-bar, and a clip pivotally secured to the plate K, having recess k, of the tooth, and

said cross-bar and adapted to support a See the bolts, all of the above parts constructed 0nd drag-bar, substantially as set forth. and combined substantially as set forth. 1 5 2. In a barrow, the combination, With a Intestimony whereoflhavesignedthisspecidrag-bar and the lock-plates secured thereto, 'fication in the presence of two subscribing Witof the cross-bar adj ustably secured to the nesses.

lock-plates, the clip pivoted tosaid cross-bar, JOHN CULLEN. and a second dragbar secured to the clip, Witnesses: 10 substantially as set forth. J. W. SALE,

3. The combination, with a drag-bar, the CHARLES E. PIERCE. 

